本文選題：公路建設(shè) + 濕地　； 參考：《北京師范大學(xué)學(xué)報(bào)(自然科學(xué)版)》2017年02期

【摘要】：水系連通性對(duì)于濕地生態(tài)系統(tǒng)的重要性主要表現(xiàn)在生態(tài)系統(tǒng)完整性、水流狀況、水質(zhì)及生物多樣性等方面,濕地水系連通性狀況越好,濕地的自凈能力和納污能力就越強(qiáng).本研究以吉林省延邊地區(qū)琿烏高速公路八家子路段作為研究區(qū),結(jié)合影響濕地水系連通性的因素,利用Visual Modflow建立了基于數(shù)值模擬的地下水水流模型和地下水溶質(zhì)遷移模型,模擬并預(yù)測(cè)不同因素的變化對(duì)濕地水系連通性產(chǎn)生的影響.依據(jù)模擬結(jié)果,對(duì)比分析公路與水流方向的夾角變化、路基填筑方式的不同、區(qū)域地層分布特征的不同對(duì)濕地水系連通性的影響大小,以識(shí)別公路建設(shè)中影響濕地水系連通性的關(guān)鍵因素;并從保障水系連通性和路基穩(wěn)定性的雙重目的出發(fā),針對(duì)不同要素,提出公路建設(shè)中濕地水系連通性的保護(hù)技術(shù).
[Abstract]:The importance of water system connectivity to wetland ecosystem is mainly reflected in ecosystem integrity, water flow status, water quality and biodiversity, etc. The better the connectivity of wetland water system is, the stronger the self-purification ability and the ability to absorb pollution of wetland are. In this study, a numerical simulation model of groundwater flow and groundwater solute transport model was established based on Visual Modflow, taking Bajiazi section of Huibian Expressway in Yanbian area, Jilin Province, as the study area, and combined with the factors affecting the connectivity of wetland water system. The influence of different factors on wetland water connectivity was simulated and predicted. According to the simulation results, the changes of the angle between the highway and the flow direction, the different filling methods of the subgrade and the influence of the regional stratigraphic distribution characteristics on the connectivity of the wetland water system are compared and analyzed. In order to identify the key factors that affect the connectivity of wetland water system in highway construction and to guarantee the connectivity of water system and the stability of roadbed, the protection technology of wetland water system connectivity in highway construction is put forward in the light of different factors.
【作者單位】： 廣西師范大學(xué)環(huán)境與資源學(xué)院;北京師范大學(xué)水科學(xué)研究院;
【基金】：西部交通科技建設(shè)資金資助項(xiàng)目(20113186701290) 廣西師范大學(xué)重點(diǎn)科學(xué)研究計(jì)劃資助項(xiàng)目(2014ZD007)
【分類(lèi)號(hào)】：U415

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1 王漢頂;吳虹;張立東;;桂陽(yáng)高速公路對(duì)巖溶濕地的影響及對(duì)策[J];科學(xué)技術(shù)與工程;2008年03期

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